Creatinine clearance is a measure of how well your kidneys are filtering waste products from your blood. It is expressed in milliliters per minute per body surface area (mL/min/BSA). The normal range for creatinine clearance varies by age.
Here are some typical ranges for creatinine clearance by age:
- Men (19 to 75 years old): 77 to 160 mL/min/BSA
- Women (18 to 29 years old): 78 to 161 mL/min/BSA
- Women (30 to 39 years old): 72 to 154 mL/min/BSA
It's important to note that these are just typical ranges and your individual creatinine clearance may vary.
Factors that can affect creatinine clearance include:
- Age: Creatinine clearance naturally declines with age.
- Gender: Women generally have lower creatinine clearance than men.
- Race: African Americans tend to have lower creatinine clearance than Caucasians.
- Muscle mass: People with more muscle mass tend to have higher creatinine clearance.
- Kidney function: Kidney disease can lead to a decreased creatinine clearance.
- Medications: Some medications can affect kidney function and creatinine clearance.
If you have any concerns about your creatinine clearance, talk to your doctor.